Presumably the ABS still works, meaning you won't lose control of the car while slamming on the breaks. As far as being hit from behind, I suppose this is (and

Presumably the ABS still works, meaning you won't lose control of the car while slamming on the breaks. As far as being hit from behind, I suppose this is (and always has been) an issue in accidents and other emergency situations. Still, the car behind you should allow appropriate spacing to prevent rear-ending you. I don't see how emergency breaking systems change really change the basic rules of the roads.